Condensed Consolidated Statement of Equity (unaudited) - 3 months ended Mar. 31, 2016 - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Company Shares Held by SERP [Member]	Retained Earnings [Member]	Non-controlling Interest [Member]	Total
Balance at Dec. 31, 2015	$ 4,598	$ 137,883	$ (23,564)	$ (1,778)	$ 490,933	$ 1,786	$ 609,858
Balance (in shares) at Dec. 31, 2015	22,988
Net income	$ 0	0	0	0	17,743	(65)	17,678
Other comprehensive income	0	0	1,395	0	0	125	1,520
Dividends declared	0	2	0	0	(2,306)	0	(2,304)
Stock-based compensation	$ 0	511	0	0	0	0	511
Stock-based compensation (in shares)	1
Stock issued under incentive plans	$ 10	(10)	0	0	0	0	0
Stock issued under incentive plans (in shares)	52
Withholding tax paid upon vesting of RSUs	$ 0	(1,022)	0	0	0	0	(1,022)
SERP transactions, net	0	7	0	(27)	0	0	(20)
Cumulative effect of adopting ASU No. 2016-09	0	150	0	0	(95)	0	55
Other	0	0	0	0	0	(14)	(14)
Balance at Mar. 31, 2016	$ 4,608	$ 137,521	$ (22,169)	$ (1,805)	$ 506,275	$ 1,832	$ 626,262
Balance (in shares) at Mar. 31, 2016	23,041